Unix timestamp converter

What is Unix time?

Unix time (also called epoch time or POSIX time) counts the seconds since 00:00:00 UTC on 1 January 1970, ignoring leap seconds. It's the standard machine representation of a moment in time: databases, APIs and log files use it because it's compact, unambiguous and time-zone-free.

Two common pitfalls: many systems (JavaScript included) use milliseconds rather than seconds — a 13-digit number is almost certainly milliseconds — and 32-bit systems storing seconds as a signed integer overflow on 19 January 2038, so new systems store 64-bit values.

Planning something rather than debugging it? Try the time-zone planner.